<template>
  <div class="app-container">

    <div class="search-div">
      <el-form label-width="70px" size="small">
        <el-row>
          <el-col :span="8">
            <el-form-item label="关 键 字">
              <el-input style="width: 95%" v-model="searchObj.keyword" placeholder="用户名/姓名/手机号码"></el-input>
            </el-form-item>
          </el-col>
          <el-col :span="8">
            <el-form-item label="操作时间">
              <el-date-picker
                v-model="createTimes"
                type="datetimerange"
                range-separator="至"
                start-placeholder="开始时间"
                end-placeholder="结束时间"
                value-format="yyyy-MM-dd HH:mm:ss"
                style="margin-right: 10px;width: 100%;"
              />
            </el-form-item>
          </el-col>
        </el-row>
        <el-row style="display:flex">
          <el-button type="primary" icon="el-icon-search" size="mini"  @click="fetchData()">搜索</el-button>
          <el-button icon="el-icon-refresh" size="mini" @click="resetData">重置</el-button>
        </el-row>
      </el-form>
    </div>

    <div class="tools-div">
      <el-button type="success" icon="el-icon-plus" size="mini" @click="add">添 加</el-button>
      <!-- 批量删除按钮 -->
      <el-button class="btn-add" size="mini" @click="batchRemove()" >批量删除</el-button>

    </div>

    <el-dialog title="添加/修改" :visible.sync="dialogVisible" width="40%" >
      <el-form ref="dataForm" :model="sysUser"  label-width="100px" size="small" style="padding-right: 40px;">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="sysUser.username"/>
        </el-form-item>
        <el-form-item v-if="!sysUser.id" label="密码" prop="password">
          <el-input v-model="sysUser.password" type="password"/>
        </el-form-item>
        <el-form-item label="姓名" prop="name">
          <el-input v-model="sysUser.name"/>
        </el-form-item>
        <el-form-item label="手机" prop="phone">
          <el-input v-model="sysUser.phone"/>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false" size="small" icon="el-icon-refresh-right">取 消</el-button>
        <el-button type="primary" icon="el-icon-check" @click="saveOrUpdate()" size="small">确 定</el-button>
      </span>
    </el-dialog>


      <!-- 表格 -->
      <el-table
        v-loading="listLoading"
        :data="list"
        stripe
        border
        style="width: 100%; margin-top: 10px"
        @selection-change="handleSelectionChange">
      <!-- 复选框 -->
      <el-table-column type="selection"/>

      <el-table-column
        label="序号"
        width="70"
        align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="username" label="用户名" width="180"/>
      <el-table-column prop="name" label="姓名" width="110"/>
      <el-table-column prop="phone" label="手机" />
        <el-table-column label="状态" width="80">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.status === 1"
              @change="switchStatus(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
      <el-table-column prop="createTime" label="创建时间" />

      <el-table-column label="操作"  align="center" fixed="right">
        <template slot-scope="scope">
          <el-button type="primary" icon="el-icon-edit" size="mini" @click="edit(scope.row.id)" title="修改"/>
          <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeDataById(scope.row.id)" title="删除" />
          <el-button type="warning" icon="el-icon-baseball" size="mini" @click="showAssignRole(scope.row)" title="分配角色"/>
        </template>
      </el-table-column>
    </el-table>

    <el-dialog title="分配角色" :visible.sync="dialogRoleVisible">
      <el-form label-width="80px">
        <el-form-item label="用户名">
          <el-input disabled :value="sysUser.username"></el-input>
        </el-form-item>

        <el-form-item label="角色列表">
          <el-checkbox :indeterminate="isIndeterminate" v-model="checkAll" @change="handleCheckAllChange">全选</el-checkbox>
          <div style="margin: 15px 0;"></div>
          <el-checkbox-group v-model="userRoleIds" @change="handleCheckedChange">
            <el-checkbox v-for="role in allRoles" :key="role.id" :label="role.id">{{role.roleName}}</el-checkbox>
          </el-checkbox-group>
        </el-form-item>
      </el-form>
      <div slot="footer">
        <el-button type="primary" @click="assignRole" size="small">保存</el-button>
        <el-button @click="dialogRoleVisible = false" size="small">取消</el-button>
      </div>
    </el-dialog>

    <!-- 分页组件 -->
    <el-pagination
      :current-page="page"
      :total="total"
      :page-size="limit"
      style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper"
      @current-change="fetchData"
    />
  </div>
</template>

<script>
  import api from '@/api/user/user.js'
  import roleApi from '@/api/system/sysRole.js'
  const defaultForm = {
    id: '',
    username: '',
    password: '',
    name: '',
    phone: '',
    status: 1
  }
  export default {
    data() {
      return {
        listLoading: true, // 数据是否正在加载
        list: null, // banner列表
        total: 0, // 数据库中的总记录数
        page: 1, // 默认页码
        limit: 5, // 每页记录数
        searchObj: {}, // 查询表单对象

        createTimes: [],

        dialogVisible: false,
        sysUser: defaultForm,
        saveBtnDisabled: false,

        dialogRoleVisible: false,
        allRoles: [], // 所有角色列表
        userRoleIds: [], // 用户的角色ID的列表
        isIndeterminate: false, // 是否是不确定的
        checkAll: false // 是否全选
      }
    },
    // 生命周期函数：内存准备完毕，页面尚未渲染
    created() {
      console.log('list created......')
      this.fetchData(1)
    },
    // 生命周期函数：内存准备完毕，页面渲染成功
    mounted() {
      console.log('list mounted......')
    },
    methods:{
      fetchData(page=1){
        this.page = page;
        if(this.createTimes && this.createTimes.length ==2) {
          this.searchObj.createTimeBegin = this.createTimes[0];
          this.searchObj.createTimeEnd = this.createTimes[1];
        }

        api.getUserPageInfo(this.page, this.limit, this.searchObj).then(
          response => {
            //this.list = response.data.list
            this.list = response.data.records;
            this.total = response.data.total;
            // 数据加载并绑定成功
            this.listLoading = false;
          }
        )
      },
      resetData(){
        // 1.清空条件搜索
        this.searchObj={};
        //2.清空日期条件
        this.createTimes=[];
        //3.刷新数据列表
        this.fetchData();
      },
      //添加操作
      // 打开弹框
      add(){
        // 将 控制弹框的 属性设置为 true
        this.dialogVisible = true;
        this.isIndeterminate = true;
        // 清空表单
        this.sysUser={};
      },
      // 根据id去回显数据
      edit(id){
        //1.弹框
        this.dialogVisible=true;
        this.isIndeterminate = true;
        //2.赋值
        api.getUserById(id)
          .then(response=>{
            this.sysUser = response.data;
          })
      },
      // 添加或者修改 具体功能
      saveOrUpdate() {
        if(this.sysUser.id!=null) {
          this.updateUser();
        }
        else {
          this.addUser();
        }
      },
      // 实现添加功能
      addUser(){
        api.saveUser(this.sysUser)
          .then(response=>{
            this.$message({
              type: "success",
              message: "添加成功!",
            });
            // 关闭弹框
            this.dialogVisible=false;
            // 刷新数据
            this.fetchData();

          })
      },
      updateUser(){
        api.updateUser(this.sysUser)
          .then(response=>{
            //a.提示语
            this.$message({
              message: '修改用户成功',
              type: 'success'
            });
            //b.关闭弹框
            this.dialogVisible=false;
            //c.刷新数据列表
            this.fetchData();

          })
      },
      // 删除操作
      removeDataById(id) {
        this.$confirm("此操作将永久删除该文件, 是否继续?", "提示", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }).then(() => {
          api.removeUserById(id)
            .then((response) => {
              // 提示
              this.$message({
                type: "success",
                message: "删除成功!",
              });
              // 刷新页面
              this.fetchData();
            });
        });
      },
      batchRemove(){
        // 判断是否有选中select
        if(this.selectValueData.length==0)
        {
          this.$message.warning('请选择要删除的记录！')
          return;
        }
        this.$confirm("此操作将永久删除该文件, 是否继续?", "提示", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }).then(() => {
          var ids=[];
          for(var i=0;i<this.selectValueData.length;i++)
          {
            var obj= this.selectValueData[i];
            // 获取id值
            var id = obj.id;
            // 将id放进到数组中
            ids.push(id);
          }
          api.removeBatchUserByIds(ids)
            .then((response) => {
              // 提示
              this.$message({
                type: "success",
                message: "删除成功!",
              });
              // 刷新页面
              this.fetchData();
            });
        });
      },
      handleSelectionChange(selectValue){
        // console.log(selectValue);
        this.selectValueData= selectValue;
      },
      // 修改状态
      switchStatus(row){
        // 如果 可用  设置为 不可用  如果不可用  设置为 可用
        row.status=row.status === 1 ? 0 : 1;
        api.updateStatus(row.id,row.status).then(response=>{
          //a.给出提示
          this.$message.success(response.message||'操作成功');
          //b.再次刷新列表
          this.fetchData();
        })
      },
      //展示分配角色
      showAssignRole (row) {
        this.sysUser = row
        this.dialogRoleVisible = true
        roleApi.getRolesByUserId(row.id).then(response => {
          this.allRoles = response.data.allRoles
          this.userRoleIds = response.data.userRoleIds
          this.checkAll = this.userRoleIds.length===this.allRoles.length
          this.isIndeterminate = this.userRoleIds.length>0 && this.userRoleIds.length<this.allRoles.length
        })
      },

      /*
      全选勾选状态发生改变的监听
      */
      handleCheckAllChange (value) {// value 当前勾选状态true/false
        // 如果当前全选, userRoleIds就是所有角色id的数组, 否则是空数组
        this.userRoleIds = value ? this.allRoles.map(item => item.id) : []
        // 如果当前不是全选也不全不选时, 指定为false
        this.isIndeterminate = false
      },

      /*
      角色列表选中项发生改变的监听
      */
      handleCheckedChange (value) {
        const {userRoleIds, allRoles} = this
        this.checkAll = userRoleIds.length === allRoles.length && allRoles.length>0
        this.isIndeterminate = userRoleIds.length>0 && userRoleIds.length<allRoles.length
      },

      //分配角色
      assignRole () {
        let assginRoleVo = {
          userId: this.sysUser.id,
          roleIdList: this.userRoleIds
        }
        roleApi.assignRoles(assginRoleVo).then(response => {
          this.$message.success(response.message || '分配角色成功')
          this.dialogRoleVisible = false
          this.fetchData(this.page)
        })
      },

    }
  }
</script>

<style scoped>

</style>
